How to Winterize Your RV Water System

Because an RV serves a dual purpose – it is both a vehicle and a house – there are certain things you’ll have to do to ensure that it stays in good condition. After all, RVs are pretty big ticket items, so it makes sense to want to give them the protection they deserve, especially during the cold winter months. Here’s our list of the top ways to winterize your RV’s plumbing system.

1. Make sure you drain the fresh water holding tank. The gray and black water holding tanks should also be drained at an approved RV dump station. If your RV doesn’t have a flushing system, you can clean and flush the black water holding tank with a wand at the dump spot. Remember to empty the water heater tank when it is cool and not under pressure to avoid injury.

2. Flush the toilet and open all the hot and cold water faucets. This will help get any residual water out of the plumbing lines. Be sure to close all faucets and recap all drains when you’re done.

3. Bypass your RV’s water heater. If one is not already installed, get one. This will help save you up to 10 gallons of RV antifreeze. Also, get your RV equipped with a water pump converter kit to introduce the antifreeze into the water system.

4. From there, you’ll want to start the 12-volt water pump to begin the process of circulating antifreeze through the water system. Remember to do this for all faucets, including the outdoor shower, if equipped. Finally, pour a cupful of antifreeze down every drain, including the toilet. Flush all remaining antifreeze into the holding tank to prevent freezing.

If you’re still unsure, please contact us and one of our factory-trained technicians will be happy to help answer all your winterizing questions.